SiO_(2)改性聚丙烯纤维棉对油水乳状液的高效分离  

Efficient separation of oil-water emulsions by SiO_(2)-modified polypropylene cellucotton

作　　者：于丹凤 张振强[1] 赵益忠 钱钦 郑成[1] 吴旭[1] YU Danfeng;ZHANG Zhenqiang;ZHAO Yizhong;QIAN Qin;ZHENG Cheng;WU Xu(Guangdong Engineering and Technology Research Center for Energy Conservation and Environmental Protection Fine Chemicals,School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou 510006,Guangdong,China;Research Institute of Petroleum Engineering and Technology of Sinopec Shengli Oilfield Company,Dongying 257000,Shandong,China)

机构地区：[1]广州大学化学化工学院,广东省节能环保精细化学品工程技术研究中心,广东广州510006 [2]中国石油化工股份有限公司,胜利油田分公司石油工程技术研究院,山东东营257000

出　　处：《精细化工》2021年第10期2042-2049,共8页Fine Chemicals

基　　金：国家自然科学基金(22008043,21878059,21878058);中国石油化工股份有限公司攻关课题(P18023-2,P20044-2)。

摘　　要：利用纳米SiO_(2)颗粒对聚丙烯(PP)纤维棉进行了亲(疏)水改性,构建了系列不同润湿性和粗糙度的PP纤维棉,探究了不同孔隙度和表面能的PP纤维棉对W/O及O/W型乳状液的分离性能。结果表明,经过亲(疏)水改性的PP纤维棉对水/正己烷和水/甲苯乳状液的分离效率都高于99.5%,分离通量高于700 L/(m^(2)·h),并针对不同形式油-水乳状液阐释其相应的分离机制,为后续油-水乳状液分离材料的科学设计和可控制备提供了理论依据。A series of polypropylene(PP) cellucotton with different wettability and roughness were fabricated by hydrophilic(hydrophobic) modification of PP cellucotton with SiO_(2) nanoparticles. The separation performance of PP cellucotton with different porosity and surface energy for W/O and O/W emulsions was investigated. The results showed that after hydrophilic(hydrophobic) modification, the separation efficiencies of PP cellucotton for water/n-hexane and water/toluene emulsions were higher than 99.5%, and the seperation fluxes were higher than 700 L/(m^(2)·h). Furthermore, the corresponding separation mechanism was explained for different forms of oil-water emulsions, which provided a theoretical basis for the subsequent scientific design and controllable preparation of oil-water emulsion separation materials.

关 键 词：油水乳状液分离 聚丙烯棉 亲水改性 疏水改性 功能材料 

分 类 号：X703[环境科学与工程—环境工程] TB34[一般工业技术—材料科学与工程]